KR101468179B1 - Method for changing virtual environment in cloud computuing and terminal equipment using the same - Google Patents

Abstract

Disclosed is a method and apparatus for changing a virtual environment based on context information in a cloud computing environment. A terminal apparatus for changing a virtual environment in a cloud computing environment includes at least one virtual machine for collecting context information, and a virtual environment computing unit for determining whether the context information causes a change of the virtual environment, and a virtual environment corresponding to the context information in cooperation with the cloud server And a hypervisor that changes the operating environment provided by the at least one virtual machine based on the determined virtual environment. Accordingly, it is possible to adaptively select and change an appropriate system operation environment based on the virtual environment corresponding to the situation information.

Description

TECHNICAL FIELD [0001] The present invention relates to a method for changing a virtual environment in a cloud computing environment, and a terminal device using the method. [0002]

The present invention relates to a virtualization technology, and more particularly, to a method and apparatus for changing a virtual environment based on context information in a cloud computing environment.

Cloud computing is a technology that combines virtualization technology with the resources of computers in different physical locations. Accordingly, the user can utilize the computing resource to any terminal anytime and anywhere if the user can access the Internet through cloud computing.

As processor technology evolves, there is a steady increase in interest in virtualization technology. Virtualization technology is a technology that allows multiple operating systems to operate independently on a single physical device.

In the virtualization technology, the physical device does not directly execute the instruction code of the application, but at least one virtual machine implemented in the physical device can execute the application by interpreting the instruction code.

With this virtualization technology, a virtualization layer is formed on the host operating system of the physical device, and a plurality of logical virtual machines are created on the virtualization layer.

In addition, a guest OS may be installed in each of a plurality of virtual machines, and an application program supported by the corresponding OS may be installed on each guest OS. Accordingly, a plurality of virtual machines can function as a self-contained platform executing their own operating system or software application.

When using virtualization technology, a virtual machine manager capable of managing a plurality of virtual machines is provided, and the virtual machine manager manages virtualized hardware resources. For example, the virtual machine manager can manage the virtual machine by creating, deleting, starting, and restarting the virtual machine.

In addition, in virtualization technology, not only can all virtual machines be used to virtualize hardware resources, but isolation is provided between each virtual machine. This is one of the most notable features of virtualization technology. It virtualizes one hardware resource so that if one virtual machine has a problem, it does not affect other virtual machines at all and provides higher stability. .

The user can install different applications in at least one virtual machine, and can execute applications installed in the virtual machine by switching virtual machines as needed. For example, in order to use at least one virtual machine as a business virtual machine and a general purpose virtual machine, a user may install an application for a company business in a business virtual machine and install a user's preferred application in a general purpose virtual machine , And can execute the application installed in the virtual machine by switching the virtual machine as needed.

However, it is necessary to restrict the user from arbitrarily changing the virtual machine. For example, a company should restrict the use of security-enhanced business virtual machines only to prevent users from exporting company data to the outside world.

In addition, there is a limitation that the virtual machine can be changed only among the virtual machines existing on the host operating system of the physical device.

According to an aspect of the present invention, there is provided a method for changing a virtual environment based on context information in a cloud computing environment.

Another object of the present invention is to provide a terminal device for changing a virtual environment based on context information in a cloud computing environment.

According to an aspect of the present invention, there is provided a terminal apparatus for changing a virtual environment in a cloud computing environment, the apparatus including: at least one virtual machine for collecting context information; And a hypervisor that interlocks with the cloud server to determine a virtual environment corresponding to the situation information and changes a driving environment provided by the at least one virtual machine based on the determined virtual environment.

Here, the at least one virtual machine may be equipped with an application for collecting status information including position information and time information.

The hypervisor includes a situation information receiving unit for receiving situation information from at least one virtual machine, a virtual environment managing unit for storing the virtual environment and interworking with the cloud server, And a virtual environment determination unit for determining a virtual environment corresponding to the situation information in cooperation with the cloud server through the virtual environment management unit.

Here, if the virtual environment corresponding to the situation information is not stored in the virtual environment management unit, the virtual environment determination unit may access the cloud server through the virtual environment management unit and receive the virtual environment corresponding to the situation information.

Here, the virtual environment management unit may store a virtual environment corresponding to the situation information in the cloud server.

Here, the hypervisor may further include a virtual environment changing unit that changes a driving environment provided by the at least one virtual machine based on the determined virtual environment.

According to another aspect of the present invention, there is provided a method for changing a virtual environment in a cloud computing environment, the method comprising: collecting context information; determining whether context information causes a change in a virtual environment; Determining a virtual environment corresponding to the situation information in cooperation with the cloud server when the virtual environment is determined to cause a change in the virtual environment, and changing a driving environment provided by the at least one virtual machine based on the determined virtual environment .

The step of determining whether the context information causes a change in the virtual environment may include performing the step of collecting the context information again when it is determined that the context information does not cause a change in the virtual environment.

The step of determining a virtual environment corresponding to the situation information in cooperation with the cloud server may include the steps of accessing the cloud server and storing the virtual environment corresponding to the situation information when the virtual environment corresponding to the situation information is not stored in the terminal device Environment can be received and a virtual environment corresponding to the situation information can be determined.

The step of determining a virtual environment corresponding to the situation information in cooperation with the cloud server may include the step of collecting the situation information again when the virtual environment corresponding to the situation information is not received from the cloud server can do.

When the method and apparatus for changing the virtual environment in the cloud computing environment according to the embodiment of the present invention as described above, an appropriate system operating environment can be adaptively selected and changed based on the virtual environment corresponding to the situation information .

Also, it is possible to maintain the latest security state by applying updated virtual machines and updated change rules through the cloud server, and to maximize user convenience.

1 is a conceptual diagram illustrating a method for changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.
2 is a block diagram illustrating a configuration of a terminal device for changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.
3 is a block diagram showing a more detailed configuration of a hypervisor in a terminal device according to an embodiment of the present invention.
4 is a flowchart illustrating a method of changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram illustrating a method for changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.

Referring to FIG. 1, a terminal device 10 can receive a cloud service through a network 20. Here, the network 20 may include a mobile communication network, a wireless LAN, and the Internet.

The terminal device 10 may be a user terminal capable of using a cloud service, such as a PC, a smart phone, a notebook computer, a tablet PC, or the like.

The terminal device 10 may have an operating system (OS), an application, a storage, or a security function necessary for providing or providing a cloud service through the cloud server 30.

In particular, the terminal device 10 according to the embodiment of the present invention may include a virtual machine capable of virtualizing a resource (resource), and may include a hypervisor 200 capable of managing a virtual machine .

The cloud server 30 stores, registers, or manages resource information so that various types of terminal devices 10 can share resources in a cloud environment. Here, the cloud server 30 may be composed of at least one server device.

Also, the cloud server 30 can relay various resources built in the terminal devices 10 so that they can share with each other.

In other words, the cloud server 30 can provide the specific terminal device 10 with information about resources that the terminal device 10 has built in response to a request from the terminal device 10. [ For example, the cloud server 30 can provide a virtual machine and a virtual environment to the terminal device 10 in cooperation with the terminal device 10. [

2 is a block diagram illustrating a configuration of a terminal device for changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.

Referring to FIG. 2, a terminal device 10 according to an embodiment of the present invention includes at least one virtual machine and a hypervisor 200. 2 illustrates that the terminal device 10 includes the first virtual machine 100_1 and the second virtual machine 100_2. However, the terminal device 10 may include three or more virtual machines to be.

A virtual machine is virtualization software that virtualizes a system, and may be a machine that represents the same operating system or a different operating system.

In particular, the virtual machine according to the embodiment of the present invention can sense and collect context information. For example, the virtual machine may be equipped with an application for collecting status information including position information and time information.

Also, the terminal device 10 according to the embodiment of the present invention can be provided with at least one virtual machine through the cloud server 30. That is, the terminal device 10 can download the virtual machine from the cloud server 30.

The hypervisor 200 can manage each state of at least one virtual machine in one of an execution state, a stop state, and an end state. For example, the hypervisor 200 may change the state of at least some of the virtual machines of at least one virtual machine to a quiescent state or a quit state, and execute at least some of the virtual machines.

The hypervisor 200 can receive the status information collected by the virtual machine and can determine whether the received status information causes a change in the virtual environment.

That is, the hypervisor 200 generates a virtual environment in accordance with a predefined virtual environment change rule stored corresponding to a virtual environment corresponding to the predefined situation information and the situation information causing a change to the virtual environment of at least one virtual machine The virtual environment corresponding to the information can be determined.

Further, the hypervisor 200 can change the driving environment provided by the at least one virtual machine based on the virtual environment.

The hypervisor 200 can determine a virtual environment corresponding to the situation information by interworking with the cloud server 30 through the network 20 and can determine a virtual environment based on the determined virtual environment and a driving environment provided by at least one virtual machine Can be changed.

3 is a block diagram showing a more detailed configuration of a hypervisor in a terminal device according to an embodiment of the present invention.

Referring to FIG. 3, a terminal device 10 according to an embodiment of the present invention includes a first virtual machine 100_1, a second virtual machine 100_2, and a hypervisor 200.

The hypervisor 200 may include a situation information receiving unit 210, a virtual environment determining unit 220, a virtual environment changing unit 230, and a virtual environment managing unit 240.

The first virtual machine 100_1 can sense and collect the situation information. For example, the first virtual machine 100_1 may be equipped with an application capable of collecting status information including position information and time information.

The first virtual machine 100_1 may transmit the collected status information to the hypervisor 200. [ Also, it goes without saying that there is at least one virtual machine for collecting the situation information according to the embodiment of the present invention.

The situation information receiving unit 210 can receive the situation information from the first virtual machine 100_1. The situation information receiving unit 210 may also transmit the received status information to the virtual environment determining unit 220. [

The virtual environment determination unit 220 can receive the context information from the context information receiver 210 and determine a virtual environment corresponding to the context information. The virtual environment determination unit 220 can access the cloud server 30 through the virtual environment management unit 240, which will be described later.

In particular, the virtual environment determination unit 220 according to the embodiment of the present invention can determine whether the status information received through the status information receiving unit 210 causes a change in the virtual environment.

In addition, when the virtual environment determination unit 220 determines that the context information causes the virtual environment change, the virtual environment determination unit 220 may determine the virtual environment corresponding to the context information in cooperation with the cloud server 30 through the virtual environment management unit 240 have.

On the other hand, if it is determined that the situation information does not cause a change of the virtual environment, the virtual environment determination unit 220 may allow the first virtual machine 100_1 to sense and collect the situation information again.

For example, when the virtual environment corresponding to the context information is not stored in the terminal device 10, the virtual environment determination unit 220 accesses the cloud server 30 through the virtual environment management unit 240, A virtual environment corresponding to the virtual environment can be provided.

On the other hand, when the virtual environment determining unit 220 can not receive the virtual environment corresponding to the situation information from the cloud server 30, the first virtual machine 100_1 can sense and collect the situation information again.

That is, the virtual environment determination unit 220 may determine whether the virtual environment corresponding to the context information is stored in the virtual environment management unit 240. [

Accordingly, the virtual environment determining unit 220 determines whether or not the virtual environment 100 is changed according to a predefined virtual environment changing protocol that associates the virtual environment that corresponds to the situation information and the context information that causes the virtual environment received from the first virtual machine 100_1 to correspond The environment can be changed or determined.

The virtual environment management unit 240 may store a predefined virtual environment change protocol that associates the context information and the virtual environment corresponding to the context information. The virtual environment management unit 240 may store at least one virtual environment and may provide the virtual environment to the cloud server 30 in cooperation with the cloud server 30 or may receive the virtual environment from the cloud server 30 .

For example, the virtual environment management unit 240 may remove the virtual environment of the terminal device 10 after transmitting and storing the virtual environment to the cloud server 30 in order to efficiently manage the storage space of the terminal device 10 . That is, the virtual environment management unit 240 can manage and store the virtual environment in cooperation with the cloud server 30.

The virtual environment changing unit 230 may change the driving environment provided by the at least one virtual machine based on the virtual environment determined through the virtual environment determining unit 220. [

For example, the virtual environment changing unit 230 changes the state of the first virtual machine 100_1 among at least one virtual machine to one of a halt state and an end state, The state of the virtual machine 100_2 can be changed to the execution state.

Accordingly, the virtual environment changing unit 230 can change the driving environment provided by the at least one virtual machine in association with the at least one virtual machine. Here, the driving environment may be a virtual environment in which at least one virtual machine is driven.

Although the situation information receiving unit 210, the virtual environment determining unit 220, the virtual environment changing unit 230 and the virtual environment managing unit 240 in the present invention described above are independently disclosed, the situation information receiving unit 210, The environment determining unit 220, the virtual environment changing unit 230, and the virtual environment managing unit 240 may be implemented as one single type or one physical device. The virtual environment change unit 230 and the virtual environment management unit 240 may be connected to one physical device or a plurality of physical devices or groups Lt; / RTI >

In the cloud computing environment according to the embodiment of the present invention, the terminal device 10 changing the virtual environment can adaptively select and change an appropriate system operating environment based on the virtual environment corresponding to the situation information.

For example, there is a security environment to be provided according to the situation information, and an optimum performance corresponding thereto. Accordingly, it is necessary to find a system operating environment to which an appropriate level of security is applied and adaptively change the system operating environment to enhance security of the system.

Accordingly, the terminal device 10 for changing the virtual environment in the cloud computing environment according to the embodiment of the present invention can be a general PC or a smart phone capable of virtualization.

4 is a flowchart illustrating a method of changing a virtual environment in a cloud computing environment according to an embodiment of the present invention.

Referring to FIG. 4, a method for changing a virtual environment in a cloud computing environment according to an embodiment of the present invention includes collecting context information, determining whether context information causes a change of a virtual environment, It is possible to determine a virtual environment corresponding to the situation information in cooperation with each other.

In addition, the operating environment provided by the at least one virtual machine may be changed based on the determined virtual environment.

The terminal device 10 can sense and collect status information through at least one virtual machine (S100). For example, the virtual machine may be equipped with an application for collecting status information including position information and time information.

The terminal device 10 can receive the status information collected by the virtual machine through the hypervisor 200 and determine whether the received status information causes a change in the virtual environment (S200). If the received status information does not cause a change of the virtual environment, the terminal device 10 can collect the situation information again and collect it.

When the received context information causes a change in the virtual environment, the terminal device 10 can determine whether a virtual reality corresponding to the context information exists in the terminal device 10 (S300).

If there is a virtual reality corresponding to the situation information in the terminal device 10, the virtual reality corresponding to the context information can be determined (S400).

Accordingly, the terminal device 10 can change the driving environment provided by the at least one virtual machine based on the determined virtual environment (S500).

In addition, if there is no virtual reality corresponding to the situation information in the terminal device 10, it may be determined whether there is a virtual reality corresponding to the situation information in the cloud server 30 (S600). The terminal device 10 can sense and collect the situation information again when the virtual reality corresponding to the situation information does not exist in the cloud server 30. [

On the other hand, when there is a virtual reality corresponding to the situation information in the cloud server 30, the terminal device 10 can receive the virtual reality corresponding to the situation information from the cloud server 30 (S700).

Finally, the terminal device 10 can determine a virtual reality corresponding to the situation information (S400), and change the driving environment provided by the at least one virtual machine based on the determined virtual reality (S500).

The method for changing the virtual environment in the cloud computing environment according to the embodiment of the present invention may be performed by the terminal device 10 changing the virtual environment in the cloud computing environment described above.

In addition, the method for changing the virtual environment in the cloud computing environment according to the embodiment of the present invention may adaptively select and change the appropriate system operating environment based on the virtual environment corresponding to the situation information.

That is, the security environment to be provided according to the situation information and the optimum performance corresponding to the security environment exist, respectively. The method according to the present invention finds a system operating environment to which security is applied at an appropriate level, have.

For example, even if one virtual machine is attacked or attacked from the outside, each virtual machine is completely isolated, so only that virtual machine will be attacked and will not affect any other virtual machines on the same hardware have.

Also, due to memory virtualization and isolation, memory resources that are problematic no matter which system is completely destroyed or occupied by errors or external intrusions are already completely separate from other virtual machine resources, May not spread to other virtual machines.

Accordingly, the method for changing the virtual environment in the cloud computing environment according to the embodiment of the present invention and the terminal device 10 using the method can enhance the security of the system and maximize the user-friendly convenience. In addition, the updated virtual machine and the updated change rule can be applied through the cloud server 30 to maintain the latest security state.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

10: terminal device 20: network
30: Cloud server 100_1: First virtual machine
100_2: second virtual machine 200: hypervisor
210: situation information receiving unit 220: virtual environment determining unit
230: virtual environment changing unit 240: virtual environment managing unit

Claims (10)

A terminal device using a cloud service,
At least one virtual machine for collecting status information;
Determining whether the status information causes a change in a virtual environment, determining a virtual environment corresponding to the status information in cooperation with a cloud server, and determining a driving environment provided by the at least one virtual machine based on the determined virtual environment Includes a hypervisor to modify,
The hypervisor includes:
A virtual machine corresponding to a virtual environment independent of the status information is transmitted to the cloud server, and the virtual machine transmitted to the cloud server is removed from the terminal device. In the cloud computing environment, Device. The system of claim 1, wherein the at least one virtual machine comprises:
And an application for collecting the situation information including the location information and the time information. The system of claim 1,
A status information receiving unit for receiving the status information from the at least one virtual machine;
A virtual environment manager for storing the virtual environment and interworking with the cloud server;
And a virtual environment determining unit for determining a virtual environment corresponding to the status information in cooperation with the cloud server through the virtual environment manager if the status information causes the virtual environment to be changed. The terminal device changing the virtual environment. 4. The system according to claim 3,
When the virtual environment corresponding to the context information is not stored in the virtual environment management unit, accesses the cloud server through the virtual environment management unit and receives the virtual environment corresponding to the context information. The terminal device changing the virtual environment. delete 4. The method of claim 3,
And a virtual environment changing unit for changing a driving environment provided by the at least one virtual machine based on the determined virtual environment. A method for changing a virtual environment of a terminal device,
Collecting situation information;
Determining whether the status information causes a change in a virtual environment;
Determining a virtual environment corresponding to the status information in cooperation with the cloud server when the status information is determined to cause the virtual environment to be changed; And
Changing a drive environment provided by at least one virtual machine based on the determined virtual environment,
A virtual machine corresponding to a virtual environment independent of the status information is transmitted to the cloud server and the virtual machine transmitted to the cloud server is removed from the terminal device. . The method of claim 7, wherein determining whether the context information causes a change in the virtual environment comprises:
And when it is determined that the situation information does not cause a change of the virtual environment, collecting the situation information is performed again in the cloud computing environment. The method of claim 7, wherein the determining the virtual environment corresponding to the context information in cooperation with the cloud server comprises:
When the virtual environment corresponding to the context information is not stored in the terminal device, the virtual environment corresponding to the context information is determined by accessing the cloud server and receiving the virtual environment corresponding to the context information, How to change the virtual environment in a cloud computing environment. The method of claim 9, wherein the determining the virtual environment corresponding to the context information in cooperation with the cloud server comprises:
And if the virtual environment corresponding to the status information is not received from the cloud server, collecting the status information is performed again.

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